gibheer
/
polecat
0
0
Fork 0
Code

delete the old index, because it's obselete

This commit is contained in:
Gibheer 2011-05-31 20:34:09 +02:00
parent aaff085b47
commit 80151adab2
9 changed files with 0 additions and 251 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/polecat.rb
View File

@ -1,5 +1,4 @@
class Polecat
require 'polecat/index'
require 'polecat/index_writer'
require 'polecat/index_reader'
require 'polecat/index_searcher'

68
lib/polecat/index.rb
View File

@ -1,68 +0,0 @@
class Polecat
# storage of documents
#
# This is the core of the search platform, the index. It stores the documents,
# stores and reads them and make them searchable.
class Index
attr_reader :path
# initialises an index object on the given path
#
# This method initialises an index on the path. The Path has to be a
# directory.
def initialize path
if File.directory? path
@path = path
@buffer = []
@documents = []
else
raise ArgumentError, "Argument no valid directory"
end
end
# returns the document count currently loaded
def count
@documents.count
end
# returns true, if it has an index
def index_dir?
File.exists?(@path + '/index.txt')
end
def write doc
if (doc.kind_of? Document)
@buffer << doc
else
raise ArgumentError, "not a document"
end
end
# read all stored documents from the index files into the index
def read
index_file = @path + '/index.txt'
if (File.exists? index_file)
@documents = Marshal.load(File.read(index_file))
end
end
def flush
@documents += @buffer
File.open @path + '/index.txt', 'w' do |file|
file.write Marshal.dump(@documents)
end
end
def search term
matches = []
linenr = 0
@documents.each do |doc|
doc.attributes.each do |key, value|
matches << linenr if value[:value] =~ /#{term}/
end
linenr += 1
end
matches
end
end
end

25
spec/index/count_spec.rb
View File

@ -1,25 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Index#count" do
before :all do
@path = prepare_index_dir
end
it "returns 0 on a fresh index" do
i = Polecat::Index.new @path
i.count.should == 0
end
it "returns 1 when 1 entry is in the index" do
i = Polecat::Index.new @path
i.write Spec::FooDocument.new(:id => 1)
i.flush
i.count.should == 1
end
it "does not count entries, which got not flushed" do
i = Polecat::Index.new @path
i.write Spec::FooDocument.new(:id => 1)
i.count.should == 0
end
end

23
spec/index/flush_spec.rb
View File

@ -1,23 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Document#flush" do
before do
@path = prepare_index_dir
@file = @path + '/index.txt'
@doc = Spec::FooDocument.new(:id => 1)
end
it "does not write anything to the file, until the #flush was called" do
i = Polecat::Index.new @path
i.flush
i.write @doc
File.read(@file).should == Marshal.dump([])
end
it "writes the content in the buffer to the file" do
i = Polecat::Index.new @path
i.write @doc
i.flush
File.read(@file).should == Marshal.dump([@doc])
end
end

19
spec/index/index_dir_spec.rb
View File

@ -1,19 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Document#index_dir?" do
before :all do
@path = prepare_index_dir
end
it "returns false, if the directory does not contain an index" do
i = Polecat::Index.new @path
i.index_dir?.should == false
end
it "returns true, if the directory contains an index" do
i = Polecat::Index.new @path
i.write Spec::FooDocument.new(:id => 1)
i.flush
i.index_dir?.should == true
end
end

22
spec/index/new_spec.rb
View File

@ -1,22 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Index#new" do
before :all do
@path = prepare_index_dir
end
it "takes a path as an argument" do
i = Polecat::Index.new @path
i.path.should == @path
end
it "raises an ArgumentError, when no path is given" do
lambda { Polecat::Index.new }.should raise_error(ArgumentError)
end
it "raises an ArgumentError, when the path is no directory" do
lambda {
Polecat::Index.new "/dev/null"
}.should raise_error(ArgumentError)
end
end

22
spec/index/read_spec.rb
View File

@ -1,22 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Index#read" do
before :all do
@path = prepare_index_dir
end
it "does not read any entries, when no files are in the directory" do
i = Polecat::Index.new @path
i.read
i.count.should == 0
end
it "loads all documents in the index directory" do
i = Polecat::Index.new @path
i.write Spec::FooDocument.new(:id => 1)
i.flush
i = Polecat::Index.new @path
i.read
i.count.should == 1
end
end

38
spec/index/search_spec.rb
View File

@ -1,38 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Index#search" do
before :all do
@doc1 = Spec::FooDocument.new :id => 1, :description => 'foo'
@doc2 = Spec::FooDocument.new :id => 2, :description => 'bar'
@doc3 = Spec::FooDocument.new :id => 3, :description => 'foo bar baz'
end
before do
@path = prepare_index_dir
@file = @path + '/index.txt'
end
it "returns an array of lines, where the match was found" do
i = Polecat::Index.new @path
i.write @doc1
i.write @doc2
i.write @doc1.clone
i.flush
i.search("foo").should == [0, 2]
end
it "returns an array of lines, where the match is somewhere in it" do
i = Polecat::Index.new @path
i.write @doc3
i.flush
i.search("baz").should == [0]
end
it "returns an empty array, when no match was found" do
i = Polecat::Index.new @path
i.write @doc1
i.write @doc2
i.flush
i.search("baz").should == []
end
end

33
spec/index/write_spec.rb
View File

@ -1,33 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
describe "Document#write" do
before :all do
@doc1 = Spec::FooDocument.new(:id => 1)
@doc2 = Spec::FooDocument.new(:id => 2)
end
before do
@path = prepare_index_dir
@file = @path + '/index.txt'
end
it "writes a document to a file" do
i = Polecat::Index.new @path
i.write @doc1
i.flush
File.read(@file).should == Marshal.dump([@doc1])
end
it "appends new entries to the end of the file" do
i = Polecat::Index.new @path
i.write @doc1
i.write @doc2
i.flush
File.read(@file).should == Marshal.dump([@doc1, @doc2])
end
it "raises an error, if the object is not a Polecat::Document" do
lambda { Polecat::Index.new(@path).write "foo" }.should(
raise_error(ArgumentError))
end
end